Who was really responsible for the formation of "Ruggle's Battery", General Daniel Ruggles or Major Francis A. Shoup?

Some controversy exists as to who exactly gave the order to concentrate artillery at this point. It has gone down in history as “Ruggle’s Battery” even though Brig. Genl. Daniel Ruggles was an infantry officer with little authority to order such a move. Major Francis Shoup, Chief of Artillery of Hardee’s Corps later claimed the honor during the postwar years. Other sources indicate that Brig. Genl. James Trudeau began the concentration after orders from Beauregard.